pieeke



. J. liz'emz;

m 0m 1% 5mm; mmmzdss. -J7 g 7/ 5 7/ Pa Zenied flea. 3/862 w Wi'tn nus.

I I Q r I Invent;

I 0" I I I v j gums gems garnet @fi'iri.

DESIRE BIEVEZ, OF HAINE ST. PIERRE, BELGIUM.

Letters Patent Np.'71,571, dated December 3, 1867.

IMPROVED OVEN FOR COOLING WINDOW-GLASS.

digs fitlgzhula nfzmt in in flgasz 21m fiatentzmt mating min 113: ram.

TO ALL WHOM IT MAY CONCERN:

Be it known that I, DfssIRh BIEVEZ, of Hainc St. Pierre, in the province of I-lainant, in the Kingdom of Belgium, have invented a new and improved Oven for Cooling Window-Glass; and I do hereby declare that the following is' a full and exact description thereof, reference being had to the accompanying sheet of drawings, and to the letters of reference marked thereon.

Figure 1 is a transverse vertical section of one of the frames, hereinafter referred to. A is the bed of the oven; B B arethe upright portions of the frame, working in the slides or grooves in the wall of the oven; C is one of the transverse bars, 0 e e a c c 0 being the chairs with the grooved rollers, hereinafter mentioned.

Figure 2 is the hereinaftenmentioned horizontal connecting-bar, to which the lever is attached.

Figure 3 is a longitudinal section of a frame. A is the bed of the oven, at being the crown or arch of the same. B is the lover. by which the upward and downward motion of the-frame is effected. G, horizontal conn'ecting-bar. D, counterbalance-weights. IE, longitudinahbar in bed of the oven.

Figure 4 is a horizontal view of thebed of the oven with the transverse and longitudinal bars.

Now the oven, which is the subject of my said invention, is constructed of a rectangular form, and of the usual materials, and is placed b the side of the ordinary spreading-furnace, with which it communicates, and from which the glass to be cooled is int-reduced on a movable table iiito the oven. At the side of the oven, and behind the spreading-furnace, is n small furnace, the heat from which circulates under the bed of the oven, and keeps 'it at the required temperature. At equal distances in the side walls of the oven are provided a number of cast-iron upright slides or grooves, in which are placed, so as to .work freely therein, a corresponding number of iron frames, the bottom transverse portions of which rise and-fall in grooves madein thebed of the oven for their reception, whilst theirtop portions project beyond the crown orarchof the even, where they are all connected by a horizontal bar. Each frame is furnished with a. counterbalance-weight, tofacilitate its upwa'rd and downward motion, which-motion is given by a lever placed at the end of the connecting-bar. 0n the upper surface of the transverse bottom pieces of the said iron frames, chairs are placed, at equal distances, each con taining a. grooved roller, and on 'each of which rollers a. flat iron bar is placed longitudinally. These bars are connected bya cross-piece at that end of the oven at which the glass is withdrawnwhemsufliciently cooled, and extend towards the mouth of the oven, to the point where the movable table carrying the glass to be cooled enters it at right angles from the spreading-furnace. The said bars, when not in use, are received into longitudinal grooves prepared in the bed of the oven, ,l eaving the surface of the bed perfectly flat and even.

'To enable others skilledin the art to construct and work my invention, I will now describe the ;,action of the apparatus, which is as follows: 5

Asheet of spread glass having been conveyed on the movable table from the spreading-furnace to the cooling-oven, it is placed by the workman on the end of the bed thereof, where it remains until the spreader has another sheetready, when, by the action of the said lever, placed at the end of the horizontal bar connecting the frames, the latter are raised up from the grooves in the bed of the oven,-bringing up with them the longitudinal bars lying on the grooved rollers fixed to the bottom. cross-pieces of the frames, and consequently the sheet of spread glass lying on the bed of theoven, the said bars afi'ording the glass a perfect support. By means of the cross-piececonnecting the longitudinal bars at one end, they can be moved horizontally all together, and they are then drawn outto something more than, the width of the sheet of glass, bringing it with them the same" distance towards the door, from which it will issue when sufliciently. cooled., The action of the lever is then reversed, the cross-pieces of the frames and the longitudinal bars full again into their respective grooves, and the displaced sheet of glass lies again perfectly flat on the bed of the oven. The longitudinal bars are then pushed in again over the grooved rollers, and the oven is ready to receive the second spread sheet, the place occupied by theiirst being vacant now. A third sheet being ready, the same operation is repeated, and so on until the first sheet put in arrives at the end of the oven gradually and equally cooled in every part, and perfectly straight, the workman havingonly to place it upright on the ground.

What I claim as my invention, and desire to secure by Letters Patent, isp The lifting-frames, constru'c'ted, arranged, and operating substantially as and for the purpose herein specified.

I'also claim the movable longitudinal bars, for moving the glass sheets or plates along, substantially as herein set forth,.in combination with the lifting-frames.

I also claim the grooved oven-bed, for the receptionof the transverse bars of the lifting-frame, and the longitudinal moving-bars, substantially as herein specified.

Brussels, sixteenth January, one thousand eight hundred and sixty-seven. a

' DESIRE BIEVEZ;

Witnesses:

' Jenn Pmnmeros,

A. Gaooii. 

